.TH range_ptrinbuf 3
.SH NAME
range_ptrinbuf \- range check pointer in buffer
.SH SYNTAX
.B #include <libowfat/rangecheck.h>

int \fBrange_ptrinbuf\fR(const void* buf,size_t len,const void* ptr);

.SH DESCRIPTION
range_ptrinbuf checks if \fIptr\fR points to \fIbuf\fR[0..\fIlen\fR-1].
.SH "RETURN VALUE"
If the buffer is implausible (buf is NULL or buf+len has an integer
overflow), return 0.

If \fIptr\fR points to one of \fIbuf\fR[0], \fIbuf\fR[1], ... or
\fIbuf\fR[\fIlen\fR-1], return 1.

Otherwise, return 0.
.SH "SEE ALSO"
rangecheck(3)